Mechanical movement



(NoliodeL) J. A. HAPNER'.

1 MECHANIGAL MOVEMENT.

N0'i' 26b.3"87. 5" Pat nted July 4, 1882.

. I a I Nib-asses l ll'wen m'b I .dww. J40 a.

UNITED STATES PATENT Oregon.

JOHN HAFNER, OF PITTSBURG, PENNSYLVANIA.

MECHANICAL MOVEMENT;

SPECIFICATION forming part of Letters Patent No. 260,387, dated July 4, 1882.

To all whom it may concern:

Be it known that I, JOHN A. HAFNER, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and usefulImprovementin Mechanicallvlovements; and I do hereby declare the following to be a full, clear, and exact description thereof, referenee'bein g had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a plan view of a series of pulleys showing my invention, the belt being thrown off the pulleys. Fig. 2 is a side elevation of the same, and Fig. 3 is a sectional view of one of the pulleys.

Like letters of reference indicate like parts wherever they occur.

My invention relates to an improved mechanical movement; and it has for its object economy of power, economy of space, and economy of machinery; and it consists in the construction and arrangement of a series of pulleys and belt, whereby the side pull is obviated, the friction is lessened, and the power is retained.

I will now describe my invention, so that others skilled in the art may manufacture and use the same. I

In the drawings, a represents the engines which drive the" drive-pulley b by means of the cranks c. vThe face of the drive-pulley b is provided with four parallel grooves, 12.

Extending from, in a straight line, and on the same plane with the two lower grooves of the pulley b is a series of pulley-wheels, d, at each end of which (the driving-pulley b being in the middle) is a guide and tightening wheel, 0, which is on an incline with the plane of the pulley-wheels.

At right angles to the line of the series of pulley-wheels d is a similar series of pulleywheels,f, on the same plane as the two upper grooves on the driving-pulley b.

At each end of the series of pulley-wheels f is an inclined guide and tightening wheel, 9, similar to the wheels 0. The center of these guide-wheels e and g is on the same plane as the center of the pulley-wheels.

The pulley-wheels d and f are attached t shafts set in suitable bearings and connected with the machinery. On the face of each of these pulley wheels are two parallel beltgrooves, h, while on 'theface of the inclined Application filed May 31, 1882. (No model.)

tightening-wheels e and 9 there is but a single belt-groove,j. These tightening-wheels are set in movable bearings and provided with springs and levers, so as to hold the belt taut. Each of these series of pulleys is provided with but a single endless belt, 70, which passes from the two inclined guides and tightening-wheels of the series in the lower set of grooves on alternate sides of each pulley-wheel, and returns on the upper set of grooves (its course being changed by the inclined guide-wheels) on alternate sides of the pulley-wheels -that is, the belt passes from one of the inclined guides and tightening-wheels to the opposite side in the lower groove of the first pulley-wheel. Then, still remaining in'the lower groove, the band crosses to the other side of the next pulley,

and so on, passing the driving-pulley in the I ment of my invention, I do not desire to limit myself to the same, as the number of pulley-- wheels may be changed, or the number of series, and also the position of the driving-pulley; but at one or both ends of each series of pulleys there must be a guide and tightening wheel in order to guide the direction of the belt and hold it taut by the adjustable spring (or its equivalent) connection of the bearing of the wheels. Nordo I confine myself to the kind or method of applying the power to the drive-wheeL- Instead of grooves on the pal leys, guide-rollers or other means may .be used to keep the band at its proper level.

By my invention all the advantages aforementioned are obtained.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s-

1'. A mechanical movementconsisting of a driven pulley, a guide wheel or wheels with i and guide-pulleys; the wlioie being: connected by anendlessibelt running on alternatesiclesz less belt running 011 alternate: sides of the 1 v ve workingepulieys,substmitiellyasdescribed.' 1 Azmeehaniealmovement eonsistingiofa driven pulley and an adjustable guide'wheel :orwheels with their axes inclined to, the axis. Y of Y driven pulley, and a series :of workingpul 7 15V scribed.v v

leys intermediate between the driven pulley of the working-pulleys, substantially as de- A mechanical movement consisting of a 1 drivenpulleyyanadjustableguixleWheeler i i wheels with: elastically-jeurneletl 'liearings v f i i z i with theinaxes inclined to the axis of the '(lrii'eu mlley, and: a series 0f working'pulleys 20 intermediate between the vdriven: pulley and i 1 1 1 I I 5 1 5 1 v guiclepulleys, thewhole being connected by Y an endless'belt'runuing on alt ernate sides of the'working-pulleys,'s;ubstantialiy as described; I I 1 1 i 1 1 I -In testimeny whereof I have hereunto set 25 Y mylimit this 27th dayofMamArD;1882. z H, H, JOHN A. HAFNER v v v v v v H v e e e e e JAMES H-PORTE 

